According to a source, Moss, 42, who started dating Bismarck last year, broke up following a "heated" argument over his party lifestyle, and their relationship, reports mirror.co.uk.

"Kate and Nikolai have been arguing a lot in the last few months but they had one row recently which was the final straw. It sounds like it was a really heated argument and Kate has said she is done with him after that," the source told The Sun newspaper.

"She was really in love with him but has said she can't take any more and that she now has to move on," the source added.

--IANS

sas/ks

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